Co2 during the day air pump at night?
How many of you run an air pump at night after your co2 goes off? The reason I ask is we put a new canister filter on last night switching from standard HOB filters and this morning all our fish were breathing very heavy and resting on the bottom. I am assuming this is because we didnt have anything breaking the surface overnight and the oxygen levels got very low. Would running an air pump overnight be a good idea? Thanks again